Friday night at Glendale’s Desert Diamond Arena, Democrats who came to see Kamala Harris and her running mate Tim Walz soon became their jubilation choir.

They were 15,000 people enraptured by the sight of a new Democratic ticket that is suddenly unburdened by the mental and physical infirmities of Joe Biden.

The mood was joyous and upward.

Except, something was off.

Barely perceptible at first, there came a few sour notes from the upper seats that eventually broke through the euphoria.

A handful of pro-Palestinian protesters had gotten into the arena and were chanting against the vice president and the Middle East policies of the present administration.

The larger crowd started to drown them out with “USA-USA,” but the protesters persisted.

And there it was.

Oct. 7.

It’s not going way.

The Hamas massacre of some 1,200 mostly Israeli civilians and the unavoidable Israeli counterattack have ripped the fabric of Democratic Party, a tear that will likely run deeper as the Harris-Walz ticket marches on.

Next week, the party will converge on Chicago, where some 50,000 to 100,000 pro-Palestinian protesters will await them, ready to raise hell and possibly crash the gates. Chicago is also home to the large concentration of Palestinian immigrants in the........

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